HP XP P9500 Storage - Manual (Page 70)

Figure 8 Third collection of monitoring information while tier relocation is performed
When Smart Tiers is configured for automatic operations, the monitoring feature will be enabled
and the time period for monitoring is set for all or part of a 24-hour period. At the end of each
monitoring period, the relocation task is performed automatically.
Tier relocation flow
The following shows the flow of allocating new pages and migrating them to the appropriate tier.
The combination of determining the appropriate storage tier and migrating the pages to the
appropriate tier is referred to as tier relocation.
Explanation of the relocation flow:
70 Configuring thin provisioning